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[-] olosta@lemmy.world 99 points 10 months ago

Second degree cousins is not that close though. If every generation has three children, that's 27 persons. I thinks that for most of human history excluding second degree cousins from the acceptable partners pool would have been impossible. Communities were not that big.

[-] spankmonkey@lemmy.world 19 points 10 months ago

Second degree cousins

I can't stop laughing.

[-] Enkrod@feddit.org 7 points 10 months ago

That's how it's phrased in many other languages, german for example.

[-] BruceLee@sopuli.xyz 5 points 10 months ago
[-] HonoraryMancunian@lemmy.world 12 points 10 months ago

And if my maths is correct, you only share on average 12.5% of your DNA with them

[-] mEEGal@lemmy.world 28 points 10 months ago

your math may be wrong, because we have very similar genomes, even compared to complete strangers. hell, even between some species.

[-] HonoraryMancunian@lemmy.world 22 points 10 months ago

Well, yes. I meant in the sense we share on average 50% with each parent/siblings, 25% with grandparents, etc. I should have said genetics instead of DNA.

[-] Knuschberkeks@leminal.space 12 points 10 months ago

iirc 90% of dna is the same even between humans and plants. (Don't quote me on that)

[-] porous_grey_matter@lemmy.ml 6 points 10 months ago

Of the variable alleles, not all DNA

[-] tetris11@lemmy.ml 1 points 9 months ago

(an ever increasing number of as the reference is constantly revised)

[-] Danquebec@sh.itjust.works 1 points 10 months ago

Groups often came together to party and marry people.

There are even rules, like exogamy is common.

this post was submitted on 09 Dec 2024
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